Dacryocyst drainage tube



FIG. 1 is a front perspective view of a dacryocyst drainage tube showing my new design;

FIG. 2 is a front view thereof, with a portion shown in cross-section;

FIG. 3 is a top view thereof;

FIG. 4 is a side view thereof, the unshown opposite side being of identical appearance;

FIG. 5 is a bottom view thereof; and,

FIG. 6 is a sectional view taken in the direction of the arrows upon the line 6—6 of FIG. 2 and enlarged twice the size of FIG. 2 with portions broken away in order to fit the enlarged view upon the drawing sheet. 

The ornamental design for a dacryocyst drainage tube, as shown and described. 